Sydra deliver heavy and thrash metal from Freiburg im Breisgau, combining classic metal foundations with thrash's aggressive velocity. Active since 2018, they bring dual-genre intensity to the Black Forest capital.

Sykfall thrash from Sweden's Varmland province since 2013. Their disease-fall portmanteau channels the collapse brought by illness into over a decade of aggressive compositions from western Sweden.

Sylex deliver stoner and thrash metal from the Cantabrian town of Suances, combining hazy riffs with aggressive velocity from the northern Spanish coast. Active since 2014, they bring flint-sharp intensity to the Cantabrian scene.

Symbolizer play thrash metal from Copenhagen, channeling the genre's aggressive velocity from the Danish capital. Active since 2014, they bring symbolic fury to the Scandinavian thrash scene.

Synchronic channel progressive death/thrash metal from Frankfurt, building technically demanding compositions that balance cerebral ambition with aggressive energy. Active since 2008, they represent the sophisticated end of the Hessian extreme metal spectrum.

Syphilis have been dealing in thrash and death metal from the Bavarian town of Winhoring since 2003, their disease name reflecting the genre's tradition of morbid nomenclature. Their two decades of activity represent a sustained commitment to extreme metal from rural Upper Bavaria.

Systematic Sickness Kin blend death, thrash, and groove metal from the eastern Finnish city of Joensuu, combining three aggressive genres into a methodical assault. Active since 2015, they bring organized sickness to the North Karelia scene.

Warsaw's Söver pair death and thrash metal from the Polish capital since 2022. Their accented name and capital-city energy channel modern aggression into compositions of dual-genre force.